Smooth and Quiet Mobility: The caster wheels feature a precision stem and smooth rolling design, allowing effortless, quiet movement on various floor surfaces, improving maneuverability and reducing noise during jacks repositioning. Precision Fit Replacement: Designed specifically as replacement parts for 3 ton and 4 ton floor jacks, these caster wheels a perfect fit and seamless compatibility, extending the life of your jacks with ease. Metal Construction: Crafted from robust metal materials, these caster wheels resist wear, corrosion, and deformation, ensuring long-lasting performance even under constant heavy use in workshops or garages. Easy Installation: With a user-friendly design, these caster wheels can be quickly and securely installed or replaced on your floor jacks without special tools, saving time and hassle for professionals and DIY enthusiasts alike. Heavy-Duty Load Capacity: Engineered to support 3 to 4 tons, these 12mm stem caster wheels provide exceptional strength and reliability for your floor jacks, ensuring safe and stable lifting of heavy vehicles or machinery without worry., Weight: 2.5573622392 Pounds, Manufacturer: Syglawnd_E59_5579897